• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Wi-Fi network can't see Bonjour services on wired network
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Wi-Fi network can't see Bonjour services on wired network


  • Subject: Re: Wi-Fi network can't see Bonjour services on wired network
  • From: Robert Davis <email@hidden>
  • Date: Wed, 13 Nov 2013 00:13:27 +0000
  • Thread-topic: Wi-Fi network can't see Bonjour services on wired network

from: http://www.cisco.com/image/gif/paws/113443/cuwn-apple-bonjour-dg-00.pdf




The Bonjour protocol operates on service announcements and service queries which allow devices to ask and
advertise specific applications, such as:
• Printing services
• File sharing services
• Remote desktop services
• iTunes file sharing
• iTunes Wireless iDevice Syncing (in Apple iOS v5.0+)
AirPlay, which offers these streaming services:
? Music broadcasting in iOS v4.2+
? Video broadcasting in iOS v4.3+
? Full screen mirroring in iOS v5.0+ (iPad2, iPhone4S or later)
•
Each query or advertisement is sent to the Bonjour multicast address for delivery to all clients on the subnet.
Apples Bonjour protocol relies on Multicast DNS (mDNS) operating at UDP port 5353 and sends to these
reserved group addresses:
• IPv4 Group Address - 224.0.0.251
• IPv6 Group Address - FF02::FB
The addresses used by the Bonjour protocol are link-local multicast addresses and thus are only forwarded on
the local L2 domain. Routers cannot use multicast routing to redirect the traffic because the time to live (TTL)
is set to one, and link-local multicast is meant to stay local by design.


Also, Apple likes to use multicast DNS or mDNS with bonjour.  A lot of vendors are having to “fix” this issue to allow enterprise deployments to use apple.  You would figure with as many large schools and hospitals using apple they would digress from their link-local design.

Make sure you are on the same network with your apple device (should be in same subnet) and it should work.  Either that or implement PIM or a bonjour gateway device.


-- RD




On 11/12/13, 6:08 PM, "Robert Davis" <email@hidden> wrote:

Also,  Bonjour is not bcast, it is multicast by nature.  Multicast will
work fine on a local segment, but will not cross layer 3 boundaries
(routers/firewalls/l3 switch ports).  PIM sparse-dense or PIM sparse mode
will help forward multicast traffic between segments.

Keep in mind, MCast is not BCast.  Two different animals.

-- RD





On 11/12/13, 6:03 PM, "Bob DeRosa" <email@hidden> wrote:

It could be doing DHCP relay without passing the bonjour traffic?  Can
you sniff the traffic?

On Nov 12, 2013, at 6:48 PM, "Rick Mann" <email@hidden> wrote:
On Nov 12, 2013, at 15:40 , Bob DeRosa <email@hidden> wrote:
Your AP may not be passing the broadcasts through. You may need
something like this.
http://www.aerohive.com/solutions/technology-behind-solution/bonjour-gat
eway
Wouldn¹t that affect DHCP (if it were not passing broadcasts)?
--
Rick

_______________________________________________
Do not post admin requests to the list. They will be ignored.
Macnetworkprog mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
com

This email sent to email@hidden


_______________________________________________
Do not post admin requests to the list. They will be ignored.
Macnetworkprog mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden
 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Macnetworkprog mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

References: 
 >Re: Wi-Fi network can't see Bonjour services on wired network (From: Robert Davis <email@hidden>)

  • Prev by Date: Re: Wi-Fi network can't see Bonjour services on wired network
  • Next by Date: Re: Wi-Fi network can't see Bonjour services on wired network
  • Previous by thread: Re: Wi-Fi network can't see Bonjour services on wired network
  • Next by thread: Re: Wi-Fi network can't see Bonjour services on wired network
  • Index(es):
    • Date
    • Thread